758  
FGUS75 KMSO 261721  
ESFMSO  
IDC035-MTC023-039-061-063-077-093-271730-  
 
HYDROLOGIC OUTLOOK  
NATIONAL WEATHER SERVICE MISSOULA MT  
1121 AM MDT TUE AUG 26 2025  
   
..ROCK AND MUDSLIDES DUE TO EXCESSIVE RAINFALL
 
 
WHERE: CLEARWATER COUNTY IN IDAHO AND MINERAL, MISSOULA, GRANITE,  
DEER LODGE, POWELL, AND SILVERBOW COUNTIES IN MONTANA.  
 
WHAT: CONFIDENCE REMAINS HIGH THAT MONSOON MOISTURE WILL BE  
SPREADING NORTH INTO THE NORTHERN ROCKIES WEDNESDAY BRINGING A  
CHANCE FOR SCATTERED THUNDERSTORMS. THESE SHOWERS AND THUNDERSTORMS  
WILL BE CAPABLE OF PRODUCING RAIN RATES IN EXCESS OF ONE HALF INCH  
PER HOUR. THE RESULT WILL BE THE POTENTIAL FOR ROCK AND DEBRIS  
SLIDES IN STEEP TERRAIN ALONG FOREST SERVICE ROADS AND RECENT BURN  
SCAR AREAS.  
 
CONSIDER DELAYING ANY BACKCOUNTRY TRAVEL FOR WEDNESDAY AND THURSDAY  
OF THIS WEEK.  

 
 
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